(DEADLINE EXTENDED: *May 25th*) [Please circulate. Apologies for multiple copies.] CALL FOR PAPERS WoLLIC 2021 27th Workshop on Logic, Language, Information and Computation October 5 to 8, 2021 ORGANISATION Universidade de São Paulo, Brazil University College London, UK Centro de Informática, Universidade Federal de Pernambuco, Brazil CALL FOR PAPERS WoLLIC is an annual international forum on inter-disciplinary research involving formal logic, computing and programming theory, and natural language and reasoning. Each meeting includes invited talks and tutorials as well as contributed papers. The twenty-seventh WoLLIC will be held online from October 5 to 8, 2021. It is scientifically sponsored by the Association for Symbolic Logic (ASL), the Interest Group in Pure and Applied Logics (IGPL), the The Association for Logic, Language and Information (FoLLI), the European Association for Theoretical Computer Science (EATCS), ACM Special Interest Group on Logic and Computation (ACM-SIGLOG) (TBC), the Sociedade Brasileira de Computação (SBC), and the Sociedade Brasileira de Lógica (SBL). PAPER SUBMISSION Contributions are invited on all pertinent subjects, with particular interest in cross-disciplinary topics. Typical but not exclusive areas of interest are: foundations of computing and programming; novel computation models and paradigms; broad notions of proof and belief; proof mining, type theory, effective learnability; formal methods in software and hardware development; logical approach to natural language and reasoning; logics of programs, actions and resources; foundational aspects of information organization, search, flow, sharing, and protection; foundations of mathematics; philosophy of mathematics; philosophical logic; philosophy of language. Proposed contributions should be in English, and consist of a scholarly exposition accessible to the non-specialist, including motivation, background, and comparison with related works. Articles should be written in the LaTeX format of LNCS by Springer (see authors instructions at http://www.springer.com/computer/lncs?SGWID=0-164-6-793341-0). They must not exceed 12 pages, with up to 5 additional pages for references and technical appendices. The paper's main results must not be published or submitted for publication in refereed venues, including journals and other scientific meetings. It is expected that each accepted paper be presented at the meeting by one of its authors. (At least one author is required to pay the registration fee before granting that the paper will be published in the proceedings.) Papers must be submitted electronically at the WoLLIC 2021 EasyChair website (https://easychair.org/conferences/?conf=wollic2021 ). PROCEEDINGS The proceedings of WoLLIC 2021, including both invited and contributed papers, will be published in advance of the meeting as a volume in Springer's LNCS series. In addition, abstracts will be published in the Conference Report section of the Logic Journal of the IGPL, and selected contributions will be published (after a new round of reviewing) as a special post-conference WoLLIC 2021 issue of the Journal of Logic and Computation (Oxford Univ Press). INVITED SPEAKERS Catarina Dutilh Novaes (VU Amsterdam) Santiago Figueira (Universidad de Buenos Aires, Argentina) Andreas Herzig (IRIT, France) Cláudia Nalon (UnB - Brazil) Giselle Reis (CMU - Qatar) IMPORTANT DATES *May 25, 2021: Full paper deadline * June 29, 2021: Author notification July 30, 2021: Final version deadline (firm) PROGRAMME COMMITTEE Carlos Areces (FaMAF - Universidad Nacional de Córdoba, Argentina) Arthur Azevedo de Amorim (Boston University, USA) Paul Brunet (University College London, UK) Nina Gierasimczuk (Technical University of Denmark, Denmark) Helle Hvid Hansen (University of Groningen, The Netherlands) Justin Hsu (University of Pennsylvania, USA) Fairouz Kamareddine (Heriot-Watt University, UK) Sandra Kiefer (RWTH Aachen University, Germany) Clemens Kupke (Strathclyde University, Scotland) Konstantinos Mamouras (Rice University, USA) Maria Vanina Martinez (Universidad de Buenos Aires, Argentina) Larry Moss (Indiana Univ, USA) Claudia Nalon (University of Brasília, Brazil) Valeria de Paiva (Samsung Research, USA, and Univ Birmingham, UK) Elaine Pimentel (UFRN, Brazil) Revantha Ramanayake (University of Groningen, The Netherlands) Jurriaan Rot (Radboud University, The Netherlands) Alexandra Silva (Univ College London) (Co-Chair) Christine Tasson (IRIF, France) Sebastiaan Terwijn (Radboud University, The Netherlands) Renata Wassermann (Univ São Paulo) (Co-Chair) STEERING COMMITTEE Samson Abramsky, Anuj Dawar, Juliette Kennedy, Ulrich Kohlenbach, Daniel Leivant, Leonid Libkin, Lawrence Moss, Luke Ong, Valeria de Paiva, Ruy de Queiroz. ADVISORY COMMITTEE Johan van Benthem, Joe Halpern, Wilfrid Hodges, Angus Macintyre, Hiroakira Ono, Jouko Väänänen. ORGANISING COMMITTEE Renata Wassermann (Univ São Paulo) (Co-Chair) Alexandra Silva (Univ College London) (Co-Chair) Anjolina G. de Oliveira (Univ Federal de Pernambuco, Brasil) Ruy de Queiroz (Univ Federal de Pernambuco, Brasil) (co-chair) SCIENTIFIC SPONSORSHIP Interest Group in Pure and Applied Logics (IGPL) The Association for Logic, Language and Information (FoLLI) Association for Symbolic Logic (ASL) European Association for Theoretical Computer Science (EATCS) ACM Special Interest Group on Logic and Computation (ACM-SIGLOG) (TBC) Sociedade Brasileira de Computação (SBC) Sociedade Brasileira de Lógica (SBL) SPECIAL SESSION: SCREENING OF MOVIES ABOUT MATHEMATICIANS It is planned to have a special session with the exhibition of a one-hour documentary film about a remarkable mathematician whose contributions were recognized with a Fields Medal just a few years before her untimely death. It is a joint production (still on its course) of The Mathematical Sciences Research Institute (MSRI) and George Csicsery (Zala Films): ‘Secrets of the Surface - The Mathematical Vision of Maryam Mirzakhani’. “The biographical film is about Maryam Mirzakhani, a brilliant woman, and Muslim immigrant to the United States who became a superstar in her field. The story of her life will be complemented with sections about Mirzakhani’s mathematical contributions, as explained by colleagues and illustrated with animated sequences. Throughout, we will look for clues about the sources of Mirzakhani’s insights and creativity." (http://www.zalafilms.com/secrets/) FURTHER INFORMATION Contact one of the Co-Chairs of the Organising Committee. WEB PAGE http://wollic.org/